[D2DEnableRuntimeCompilation] is ignored if [assembly: D2DShaderProfile(...)] is used

[rickbrew]

As per our Discord conversation, it appears that [assembly: D2DShaderProfile(...)] takes precedence over (non-assembly-wide) [D2DEnableRuntimeCompilation].

Either I should be able to use [D2DEnableRuntimeCompilation] on specific shaders in order to disable compile-time compilation ...

... or it should emit a compile-time error/diagnostic

I do want to be able to use the attribute in this way so I can diagnose some build performance issues.

[Sergio0694]

The diagnostic already exists and there is a test for this scenario as well:

ComputeSharp/tests/ComputeSharp.D2D1.Tests.SourceGenerators/Test_D2DPixelShaderDescriptorGenerator_Analyzers.cs

Lines 290 to 312 in 5eea4d0

	[TestMethod]
	public async Task ShaderWithPrecompiledBytecode_FromAssembly_WithUnnecessaryD2DEnableRuntimeCompilation_Warns()
	{
	const string source = """
	using ComputeSharp;
	using ComputeSharp.D2D1;
	[assembly: D2DShaderProfile(D2D1ShaderProfile.PixelShader50)]
	[D2DInputCount(0)]
	[{|CMPSD2D0078:D2DEnableRuntimeCompilation|}]
	[D2DGeneratedPixelShaderDescriptor]
	internal partial struct MyType : ID2D1PixelShader
	{
	public Float4 Execute()
	{
	return 0;
	}
	}
	""";
	await CSharpAnalyzerWithLanguageVersionTest<D2DEnableRuntimeCompilationOnTypeAnalyzer>.VerifyAnalyzerAsync(source);
	}

Checking the code also seems fine. Are you using an older version maybe? Can you try with the latest nightly?

[rickbrew]

Okay it looks like your diagnostic does fire, so I must've been on a nightly build that was before you implemented that

I'd still like the ability to override this on a per-shader basis, but I did figure out my build perf problems and they weren't CS related. So this isn't a high priority item for me at all.